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The AAPG/Datapages Combined Publications Database
Showing 47,307 Results. Searched 195,372 documents.
TAU Migration and Velocity Analysis
Search and Discovery.com
N/A
Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015)
Emil Blias
Search and Discovery.com
... functions can be used to build a depth velocity model for pre-stack and post-stack depth migration. Acknowledgements I would like to thank Valentina...
2015
North West Shelf 3D Velocity Modeling
Laureline Monteignies, Cedric Magneron, Natalia Gritsajuk
Petroleum Exploration Society of Australia (PESA)
... available were: • • • • 108 3D seismic velocity data sets 130 2D velocity data sets 889 wells with time-depth functions 5 regional interpretation...
2016
Velocity Anisotropy Estimation in the Vertical Plane Using VSP Data
A. Kebaili, D. R. Schmitt
CSPG Special Publications
...Velocity Anisotropy Estimation in the Vertical Plane Using VSP Data A. Kebaili, D. R. Schmitt 1994 256 257...
1994
Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)
Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen
Search and Discovery.com
... (m) c) 3000 d) Figure 1: Numerical example FWI using PSTM imaging theory a) True velocity vs depth b) True velocity vs time c) starting velocity d...
2014
Implications of Seismic Attribute Computations From Depth-Migrated Data
Search and Discovery.com
N/A
Abstract: Attenuation, Velocity Dispersion and the Fate of the Vibroseis Signal; #90211 (2015)
Bernd Milkereit, Flora Sun, Wei Qian, and Thomas Bohlen
Search and Discovery.com
...-frequency decomposition of the uncorrelated Vibroseis signal recorded at 1145 m depth. The Effect of Velocity Dispersion A constant Q-model will give...
2015
Transformation of Resistivity to Pseudovelocity Logs
Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs
AAPG Bulletin
... to anomalous drilling mud resistivities. Acheson, C. H., 1963, Time-depth and velocity-depth relations in western Canada: Geophysics, v. 28, p. 894-909...
1975
AAPG Memoir 76, Chapter 15: Forward Modeling of Log Response in Geopressured Formations Reveals Valuable Insights to the Various Pore-Pressure Prediction Techniques
J. C. Rasmus
AAPG Special Volumes
... of 1.0. Total vertical depth (TVD) is measured in feet, and velocity is in ft/sec. End_Page 161------------------------ shows...
2001
Shear Velocity Prediction and its Rock Mechanic Implications, #41296 (2014)
Yexin Liu, Zhuoheng Chen, Kezhen Hu
Search and Discovery.com
... velocity and density can be inverted using current advanced pre-stack seismic inversion technique from seismic AVO angle gathers (Russell et al. 2005). Like...
2014
Velocity for Pore Pressure Prediction Modeling and Risk Assessment
Selim Simon Shaker
GCAGS Transactions
...). Red dashed trend represents the average FFP vs. depth. Predicting the pressure in this zone, using seismic velocity, is a challenging task...
2016
Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming
Alvin K. Benson
Wyoming Geological Association
... of stacking velocity functions, the image doesn't improve measurably. Figure 3. Conventional time imaging plus conversion to depth, using data in Figure 2...
1995
Use of Layered Formation Models in Deformation Analysis; #40853 (2011)
Eric Davis
Search and Discovery.com
...’s functions that integrate the wave-number spectra functions. Although the calculations involved in this model are more complex than those...
2011
2010
Know Before You Go!
Lars Zühlsdorff, Trond Haugland
GEO ExPro Magazine
... suitable for migration tests. Using different background models for Kirchhoff target migration, i.e., different velocity fields, the effect...
2021
The Suitable Method in Generating True Depth Structure Maps to Eliminate Wonocolo Push-Down Effect on Seismic Data and Its Impact on Prospect Evaluation, North Madura Platform, East Java Basin
Haryono Haryanto, Rizki Krishna Pratama, Riaz Alai, M. Afiq B. Mokhtar, Pongga Wardaya, Yonghe Guo, Jun Wang
Indonesian Petroleum Association
... the lateral and vertical velocity uncertainty with combination of wells and seismic data. The 3D velocity model was then used for time to depth conversion. 3D...
2018
Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)
Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson
Search and Discovery.com
... using different near surface weathering static calculations and different velocity model building strategies are compared. In the first processing, we...
2015
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.... For long offsets (offset/depth § 1.5 – 2.5), we can expect significant improvement of VRMS estimation using three-term velocity analysis, even though...
Unknown
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.... For long offsets (offset/depth § 1.5 – 2.5), we can expect significant improvement of VRMS estimation using three-term velocity analysis, even though...
Unknown
Effective Use of High Density VSP Measurements to Predict Pore Pressure and Estimate Mud Weight Ahead of Drilling in the Mahakam Delta, Indonesia
Mohammed Badri, Stephane Gazet, Gregoire de Tonnac
Indonesian Petroleum Association
... Technology VSP methodology has several key applications such as time versus depth relationship, interval and average velocity calculations, calibration...
2005
Chapter 8: Evaluation of Anomalous Pressuring and Gas Saturation Using 2-D and 3-D Visualizations of Well Log Information
Zun S. Jiao, Ronald C. Surdam
Montana Geological Society
...") below the pressure boundary surface using one-, two-, and three-dimensional velocity modeling and visualizations of well log and seismic...
1997
Using Sonic and Resistivity Effective Medium Theories to Quantify the Influence of Rock Fabric on the Mechanical Properties of Organic Mudrocks
Paul Sayar, Carlos Torres-Verdín
Unconventional Resources Technology Conference (URTEC)
... of symmetry lies along the vertical x3 -axis. Velocities are functions c c 2 11 12 of the elastic properties and bulk density, , of the rock...
2015
Abstract: Interferometric Assessment of Clamping Quality of Borehole Geophones; #90224 (2015)
Yoones Vaezi and Mirko van der Baan
Search and Discovery.com
... correlation functions can consequently be inverted for 2D and 3D velocity structures. Body waves may also be extracted from SI of closely-spaced receivers...
2015
Three-Dimensional Depth Imaging of Seismic Data to Assess Subsurface Geology in Northern Utah and Southwestern Wyoming
Alvin K. Benson
Utah Geological Association
... of the data using stacking velocities, followed by conversion to depth, was attempted, but after numerous tries with a variety of stacking-velocity functions...
1999
Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally
Agus Muharam, Frank Musgrove
Indonesian Petroleum Association
... arriving at high angle from vertical, and lack of control on velocity needed to migrate and depth convert the VSP data. Figure 2. Schematic cross section...
1998